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Finding the Fourth Proportional to 2,387.75, 3,295.00 and 1,325.56

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Solution

The fourth proportional to 2,387.75, 3,295.00 and 1,325.56 is: 1,829.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,387.75 : 3,295.00 = 1,325.56 : x
  2. Step 2: Convert to fraction form
    2,387.75/3,295.00 = 1,325.56/x
  3. Step 3: Cross multiply
    2,387.75x = 3,295.00 × 1,325.56
  4. Step 4: Simplify right side
    2,387.75x = 4,367,711.16
  5. Step 5: Solve for x
    x = 4,367,711.16/2,387.75
  6. Step 6: Final answer
    x = 1,829.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.